Title :
A 200-kHz ultrasonic transducer coupled to the air with a radiating membrane
Author_Institution :
Iskra Kibernetika, Kranj, Yugoslavia
Abstract :
The development of a 200-kHz air ultrasonic transducer that consists of a piezoceramic disc and metal housing, the latter acting as a radiating membrane, is discussed. Theoretical analysis of the axially symmetric transducer structure is based upon the finite-element method. Calculations of the resonance frequencies, corresponding transducer deformations and input electrical admittance are performed using triangular ring elements with six degrees of freedom. Measured values on experimentally built transducers show good agreement with theory.
Keywords :
"Ultrasonic transducers","Biomembranes","Piezoelectric materials","Vibrations","Finite element methods","Frequency","Acoustic transducers","Bonding","Admittance","Robot sensing systems"
Journal_Title :
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control